I'm able to show a video stream in a window. I'm using DirectShow VideoMixingRenderer9 in C#. I have created an Image with sometext in it. Now, how can I mix this image with the video stream so that both video stream and text is shown in the capture window. I tried with ISampleGrabber filter but it doesn't work with all video device and capture screan only shows the text with black background but no video stream. So I don't want to use ISampleGrabber filter.
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This seams to be a similar question: http://stackoverflow.com/questions/7699024/showing-a-semi-transparent-image-object-over-an-ivideowindow-in-c-sharp-using-di – CPlusSharp Jun 17 '12 at 11:02
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IVMRMixerBitmap9 interface should help you, which is implemented by the VMR. This is the link to MSDN:
[http://msdn.microsoft.com/en-us/library/windows/desktop/dd390451(v=vs.85).aspx][1]
The bitmap needs to have alpha values so that it can be blended with the rendered video.
Saibal
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@Shomrat Shomrat : If this helped you, would you please accept the answer? – Saibal Jul 08 '12 at 18:48